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Effect of the mass ratio of micron and submicron silver powder in the front electrode paste on the electrical performance of crystalline silicon solar cells

机译：微米和亚微米银粉在前电极浆料中的质量比对晶体硅太阳能电池电气性能的影响

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摘要

In this paper, highly-dispersed spherical micron-sized (D-50 = 2.94 mu m) and submicron-sized (D-50 = 0.59 mu m) silver powders were prepared by a chemical reduction method. Hybrid silver powder was then synthesized by mixing the micron-and submicron-sized silver powders, and the mass percentages of submicron-sized silver powder in the hybrids were 0, 100, 5, 10, 15, and 20%. The tap density of the silver powders, cross-sectional and surface microstructures, and performance of cells designed using these silver powders were investigated. The results suggested that the mass ratio of hybrid silver powder had an important influence on the structure of the contact interface, the quality of the ohmic contacts, and the electrical performance of solar cells. The electrical performances of solar cells made with mixed silver powder were better than those made using pure micron-or submicron-sized silver powders. The optimal level of submicron-sized silver powder content was 15 wt%. This was because the surface morphology of the thick films prepared using this hybrid was smooth and dense, the layer had sufficient silver crystallites to increase the contact area fraction, and there was a thin glass layer to improve the probability of tunnelling from Ag crystallites to the Ag grid. This led to the formation of good ohmic contacts and conductive chains. As a result, this silver powder gave the best photoelectric conversion efficiency (18.282%) and series resistance (0.0019 Omega).
机译：在本文中，高度分散的球形微米尺寸（d-50 = 2.94微米）和亚微米尺寸（d-50 = 0.59微米）通过化学还原方法制备的银粉末。混合银粉末然后通过微米和亚微米尺寸的银粉混合合成，并且亚微米级银粉末在杂交的质量百分比分别为0，100，5，10，15，和20％。银粉的使用这些银粉设计细胞的振实密度，横截面和表面的微观结构和性能进行了调查。结果表明，混合银粉末的质量比对的接触界面，欧姆接触的质量，和太阳能电池的电性能的结构有重要影响。混合银粉末制成的太阳能电池的电性能比那些使用纯微米或亚微米级银粉末制成更好。的亚微米尺寸的银粉含量的最佳水平为15％（重量）。这是因为使用这种混合是光滑的和致密的，该层具有足够的银晶粒增加接触面积分数制备的厚薄膜的表面形态，并有一个薄的玻璃层，以提高由Ag隧穿的概率微晶到银网格。这导致了良好的欧姆接触和导电链的形成。其结果是，该银粉末，得到最好的光电转换效率（18.282％）和串联电阻（0.0019欧米茄）。

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  • 来源
    《RSC Advances》 |2016年第34期|共9页
  • 作者

    Wang Hanying; Tai Yuping; Li Ruixiao; Wang Hui; Bai Jintao;

  • 作者单位

    Northwest Univ Inst Photon &

    Photon Technol Applicat Int Sci &

    Technol Cooperat Base Natl Pho Natl Key Lab Photoelect Technol &

    Funct Mat Cultu Xian 710069 Peoples R China;

    Northwest Univ Coll Chem &

    Mat Sci Minist Educ Key Lab Synthet &

    Nat Funct Mol Chem Xian 710069 Peoples R China;

    Northwest Univ Coll Chem &

    Mat Sci Minist Educ Key Lab Synthet &

    Nat Funct Mol Chem Xian 710069 Peoples R China;

    Northwest Univ Inst Photon &

    Photon Technol Applicat Int Sci &

    Technol Cooperat Base Natl Pho Natl Key Lab Photoelect Technol &

    Funct Mat Cultu Xian 710069 Peoples R China;

    Northwest Univ Inst Photon &

    Photon Technol Applicat Int Sci &

    Technol Cooperat Base Natl Pho Natl Key Lab Photoelect Technol &

    Funct Mat Cultu Xian 710069 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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